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↳ Fire Doors / T90

T90 Fire Doors

90 minutes of fire resistance for maximum security. T90 doors are required in fire walls, high-rise stairwells, industrial buildings, server rooms and special-construction buildings. Classified EI₂90 to EN 13501-2 — three times the protection of T30.

90 min fire resistanceFire wall · industry · server roomSteel · special aluminium
T90 fire door in the fire wall of an industrial hall
↳ 90 min fire resistance
Double-leaf T90 door · production hall
↳ What does T90 mean?

Triple protection — for fire walls and high-risk areas.

A T90 fire door withstands fire and heat in the standard fire test for at least 90 minutes. Classified T90 to DIN 4102-5 or EI₂90 to EN 13501-2. T90 is significantly more demanding than T30: higher requirements for the leaf, frame, wall type and joint. T90 doors are usually combined with smoke control ("-RS") and frequently with hold-open systems — they remain open in daily use and only close automatically in a fire. The fire protection concept of the building and the industrial-construction directive or the relevant special-construction code govern.

↳ Material & configurations

Predominantly steel — aluminium and glass as special cases.

T90 is technically demanding. We recommend the variant suited to wall, fire load and appearance.

01

Steel

Standard for T90 — robust, available in all sizes, best availability and the lowest price.

02

Special aluminium

For premium interior areas, foyers and representative fire-wall transitions — slim profiles, high-end appearance.

03

With T90 glazing

PROMAGLAS or Contraflam — possible but significantly more expensive than solid or T30 glass.

04

Single-leaf

Standard for openings up to about 1,250 mm wide.

05

Double-leaf

For wide industrial openings and transport routes — with mandatory closing-sequence control.

06

With hold-open system

Open in daily use, closing automatically in a fire via fire alarm or smoke detector.

↳ Our services

T90 — from planning to maintenance.

T90 demands experience. We bring statics, frame and wall combination into an approved combination — and document every step.

  1. ↳ 01

    Planning support

    Review of statics, wall type and frame choice — based on your drawings and on site.

  2. ↳ 02

    Supply of certified systems

    Hörmann, Novoferm, Teckentrup, Schüco — with approval and test certificate.

  3. ↳ 03

    Installation by certified team

    Trained fitters with current manufacturer records — a precondition for valid approval.

  4. ↳ 04

    Documentation

    Declaration of conformity, approval label, installation record — audit-proof for authorities and insurers.

  5. ↳ 05

    Maintenance & inspection

    Annual inspection per DIN 14677 with logbook and defect record.

↳ Typical applications

Where T90 doors are mandatory.

01

Fire walls

Separate building sections and are mandated by BauO NRW § 28 — standard requirement T90.

02

High-rise stairwells

Above a defined building height (high-rise directive / HHR NRW) — T90-RS doors with self-closing.

03

Industrial buildings

Per the industrial-construction directive — separation of fire compartments, storage of hazardous substances.

04

Server rooms & data centres

Asset protection for IT infrastructure — often combined with access control and climate sealing.

05

Plant rooms in special buildings

Hospitals, assembly venues, hotels — where the special-construction code requires it.

06

Separation of high fire loads

Storage, workshops, transformer stations — wherever the fire-load comparison demands T90.

↳ What does a T90 door cost?

T90 price range — significantly above T30.

T90 doors are 2–4× more expensive than comparable T30 specifications. Main reasons: heavier leaf, more stable frame, stricter joint, often non-standard sizes.

  1. from €1,800
    T90 single-leaf steel · standard size
    Leaf with standard frame, without installation.
  2. from €2,800
    T90 double-leaf steel
    With closing-sequence control — typical for industry and fire walls.
  3. from €4,500
    T90 with glazing
    EI₂90 glass, single-leaf — for representative areas.
  4. from €6,000
    T90 with hold-open system
    Including fire alarm, door closer and supply.

Prices are indicative including VAT. A binding quote follows an on-site survey and substrate check.

↳ Frequent questions on T90

Answers on T90 fire doors.

↳ See also

Related services.

↳ Next step

Plan a fire compartment with T90.

Are you planning a fire wall or a high-risk area? We come on site, check wall and statics and deliver a binding quote.